GENRAD, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 14145
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 4443
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
H04B TRANSMISSION 1209
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1155

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6175230 Circuit-board tester with backdrive-based burst timingJan 14, 99Jan 16, 01[G01R]
6114848 Direct-measurement provision of safe backdrive levelsJan 14, 99Sep 05, 00[G01R]
5861743 Hybrid scanner for use in an improved MDA testerDec 21, 95Jan 19, 99[G01R]
5811980 Test system for determining the orientation of components on a circuit boardAug 21, 95Sep 22, 98[G01R]
5748672 System for measuring jitter in a non-binary digital signalAug 11, 95May 05, 98[H04B]
5745672 Main memory system and checkpointing protocol for a fault-tolerant computer system using a read bufferNov 29, 95Apr 28, 98[G06F]
5736862 System for detecting faults in connections between integrated circuits and circuit board tracesJun 22, 95Apr 07, 98[G01R]
5615219 System and method of programming a multistation testing systemNov 02, 95Mar 25, 97[G06F, G01R]
5602490 Connector for automatic test equipmentMar 14, 95Feb 11, 97[B23P, G01R]
5457380 Circuit-test fixture that includes shorted-together probesMay 11, 94Oct 10, 95[G01R]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6363217 Convective heater employing foam metal diffuserExpiredFeb 02, 01Mar 26, 02[F24H]
5627913 Placement system using a split imaging system coaxially coupled to a component pickup meansExpiredJan 26, 96May 06, 97[G06K]
5506510 Adaptive alignment probe fixture for circuit board testerExpiredMay 18, 94Apr 09, 96[G01R]
5471310 System for placement and mounting of fine pitch integrated circuit devicesExpiredMay 20, 93Nov 28, 95[G01B]
5433368 Soldering systemExpiredNov 10, 92Jul 18, 95[B23K, H05K]
5317803 Method of soldering an integrated circuitExpiredOct 16, 92Jun 07, 94[H05K]
5278938 Infrared heater array for IC soldering reflective membersExpiredFeb 22, 91Jan 11, 94[F26B]
5251266 System for placement and mounting of fine pitch integrated circuit devices using a split mirror assemblyExpiredApr 21, 92Oct 05, 93[B23P, G02B, B25J, G06K]
5234151 Sensing of solder melting and solidificationExpiredAug 28, 92Aug 10, 93[H05K]
5220147 Electronic component heaterExpiredAug 26, 91Jun 15, 93[B23K]
5172377 Method for testing mixed scan and non-scan circuitryExpiredSep 07, 90Dec 15, 92[G01R]
5128009 Process for reducing the reflectivity of sputtered filmsExpiredNov 30, 90Jul 07, 92[C23C]
5127009 Method and apparatus for circuit board testing with controlled backdrive stressExpiredAug 29, 89Jun 30, 92[G01R]
5103109 Ground-loop interruption circuitExpiredJul 03, 90Apr 07, 92[H02J]
5057775 Method of testing control matrices for flat-panel displaysExpiredMay 04, 90Oct 15, 91[G01R]
5042571 Variable perimeter heaterExpiredAug 02, 88Aug 27, 91[F24H, H05B, B23K]
5027298 Low-dead-time interval timerExpiredJun 29, 89Jun 25, 91[G06F, G04F]
4977370 Apparatus and method for circuit board testingExpiredDec 06, 88Dec 11, 90[G01R]
D312646 Electronic circuit board rework and repair systemExpiredJun 17, 87Dec 04, 90[]
4951283 Method and apparatus for identifying defective bus devicesExpiredJul 08, 88Aug 21, 90[G06F]

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